Damper control for radiator boxes



Nov. l, 1927. 1,647,939

c. c. sHlPP DAMPER CONTROL FOR RADIATOR BOXES Filed Aug. 28. 1926 Ff? E. .Il

Patented Nov. 1, 1927.

CLARENCE C. SI-IIPP, F INDIANAPOLIS, INDIANA.

DAMPER CONTROL FOR RADIATOR BOXES.

Application led August 28, 19526. Serial No. 132,168.

This invention relates to heating and ventilat-ing units tor buildings, particularly those in which a large nuinber ot people are congregated, as in school rooins, halls, and the like, that are heated by steani circulating through radiator sections, and wherein fresh outside air is adniitted to a box, in which the radiator is wholly or partly contained', and caused to sweep the coils from bottoni to top of the radiator. And it further relates to an air-flow control for the above unit comprising a daniper in the air intake and a second daniper regulating a discharge through the bottoni of the box base into the roon'i.

@ne object oit this invention is so to synchronize Vthe opening and closing ot the two da-nipers that as either one is opened, the other will be closed to the saine extent.

A `further object is to provide an adjust nient by which the relative movements oi' the two danipers inay be changed and regulated.

rThe object also is to provide inea-ns for manually operating the daniper control.

l accomplish the above and other objects which will hereinafter appear in the appended description by theinechanisni illustrated in the accompanying drawing, in whicli l Fig. 1, is a perspective view ot a radiator housed in a box, having a base connected with an outside air intake, said parts having dainpers and dainper controls embodying iny invention, the radiator box and yrooinwall being broken away to show said operative mechanism in full open position of the intake dainper and closed position of the daniper in the base.

Fig. 2, is a like View with the intake daniper closed and the other open.

Like characters of reference indicate like parts in the two views.

The radiator sections 3 are ot any usual and suitable construction, heated with steain. They are here shown as partly enclosed b a sheet metal boX 4; which has a base 5. Al or as many of the sections of the radiator as desired may be included in the box. The above assembly is located near a wall 6 of a room to be heated.

For sanitary reasons the vitiated air next to the ceiling of the room is discharged through a ventilator (not shown) oit usual construction, which creates a partial vacuum here utilized to draw in pure out-side air through an air chute 7 which discharges into the base through a sleeve extension which discharges through the side next to the wall, oi the base 5 which is open `tor such connection. The purpose otthe [sleeve extension is to adjust the length of the chute to the thickness of the wall 6, the thickness o'f which frequently varies.

The base 5 also has a longitudinal bottoni opening whichis closed by a nietal door or damper 8, hinged to the base under the rear side of the bottoni opening.

Hinged to the top oit the chute 7 is a daniper 9, the lower edge of which in closed position olf the dainper contacts a. rib 10 on the bottoni ot chute 7.

The usual storni louvers 11, and wire insect screen 12, are provided between the outer end ot the chute and damper 9.

Pivoted to ears 2 extending up frein the bottoni oi' chute 7 is a lever 13, the upper end of which is connected by a link 1st with ears on the dainper 9. A link-bar is also pivoted to lever 13between link 14 and ears 2, and extending toward the dainper 8, it is pivo'tally attached to a. lever 16. rlhe lower end ci the lever 16 is pivoted to ears 17 on the chute bottoni close to the edge of the bottom opening in base 5. 'The other end of the lever 16 is connected by an elastic tie R 18, here shown as a spirally wound spring, with an eye in the daniper 8.

A chain 19 is secured at one end to the iree end ot lever 16 and it passes thence through a suitable opening in the sleeve 'torniinga part ot the air-intake chute,` to a pulley 20, thence around a pulley 21, near the top of the radiator box, and thence through the box to the -front and outside oit the latter, where it terminates with a hand pull 22. The hole in the front ot the box through which the chain passes has a. narrow slot 23 in its bottoni to receive a link and lock the chain at any position by dropping the hand pull 29..

Referring to the link-bar 15, its end next to the lever 16 is bent downwardly for better clearance of the body of the bar with the ears below, in the lowered position oi' the link bar shown in Fig. 2, and this link bar 15 is preferably rnade 11i two pieces which lap each other and are united by screws or bolts adapted to be removed for the purpose ot lengthening or shortening the bar in adjusting it so that either of the two danipers,

loo

8 and 9, Will be fully open when the other is closed, ormay'be opened to any desired extent less than full.

To thisend each piece of the twvo-partba`r will be formed with a' suitable series of bolt holes. This adjustment of link bar l5 is important when the damper 8 is closed through a spring tie 18, because of the varying tension ot such springs;

As this inventionis capable of variations in form and arrangement I do not desire to limit myself to what is here shoivn and described, any more than is required by the appended claims.

I claim:

l. The combination, with a radiator, of a radiator box, a box base, a damper in the bottom of the boxv base, a. fresh air chute discharging into the box base', a damper in the air chute,a pair of levers pivotally sup ported one by the air chute, and the other by the box base, a link bar connecting the two levers, ai link connecting one of the levers with the damper in thexair chute, an elastic tie connecting the other lever With the damper in the box base, and means for moving the last lever in opposition to the pull of the elastic tie on said lever.

2. The combination, with aradiator, a radiator box, a box base, a damper in the bottom ot' the box base, a fresh air chute discharging into the box base, a damper in the air chute, a pair of levers pivotally supported one by the air chute and the other by the box base, a link bar connecting the two levers, a link connecting one of the levers with the damper in the air chute, an elastic tie connecting the other lever with the damper in the box base, and means for 1n0ving the last lever in opposition to the pull of the elastic tie on said lever comprising a manually operated pull chain.

3. rIhe combination, with a radiator, of a radiator box, a box base, a damper in thev bottom oi the box base, a fresh air chute discharging into the box base, a damper in the air chute, a lever pivotally supported one by the air chute and the other by the box base, a link bar connecting the lever ivith the damper in the air chute, a secondlink bar on the other side of the lever from the first pivoted to said lever, means including a spring tie connecting the second link bar with the damper in the bottom of the box base and manually operated means for moving the second link bar in opposition to the spring tie.

i the air chute, a pair of levers pivotally supported one by the air chute, and the other by ,the box base, a link bar connecting the tivo levers said link bar being adjustable in its length, a link connecting one ot the levers ivith the damper in the air chute, a spring tie connecting the other lever with the damper in the box base, and a pull chain for moving the last lever in opposition to the spring.

5. The combination, with a radiator, of a radiator box, a box base, a damper in the bottom of the base hinged on the Wall side ot the base, a fresh air chute discharging into the box base above the damper, a damper in the air chute hinged at its upper edge and swinging downwardly. a pair of levers pivoted at their loiver ends to ears one on the bottom ot the chute and the other on the box base, a link bar connecting the upper end of one ot the levers with ears on the damper in the air chute, a link bar adjustable in its length pivote'd at its ends to each of said levers, a coiled spring connecting the outer end of the nearest lever ivith the damper in the box base, and a chain attached to the outer end of said last lever Jfor manually moving the lever in'opposition to the spring.

6. rI`he combination, with a radiator, oii a radiator box, a box base, a damper in the base. a fresh air chute discharging into the box base, a damper in the chute, means for simultaneously operating the tivo dampers, means for adjusting the distance between the dampers by varying the length of the chute, and means tor adjusting the relative movements of said dampers at all positions ot the dampers.

7. The combination, with a radiator, of a radiator box, a box base, a damper in the base controlling the discharge into the room, a fresh air chute discharging into the box base, a damper in the chute controlling the discharge through the chute, means for simultaneously and manually operating the tivo dempers, means'ior adjusting the distance between the dampers by varying' the length of the chute, and means for adjusting the relative movements ot' said dampers at all positions of the damper-s.

In testimony whereof I allix my signature.

CLARENCE C. SHIPI). 

